Split demountable rim.



ELMER OLIVER, OF DAYTONA, FLORIDA.

SPLIT DEMOUNIABLE RIM.

Be it known that I, ELMER OLIVER, a citi- Z(H of the United States, residing at Daytona. in the coanty of Volusia and State of Florida, ha vc invcnted certain new and useful Improvements in Split Demountable Rims. of which the following is a specifica tion, reference heiu had therein to the ac companying drawing.

This invention relatos to improvements in demountable rin;s for vehicle wheels, such as automohile wheels, and particularly to a demountahle rim of the split seetional tvpe. 2". c., composed of two or more sections adapted for assemblage and connection to form a complete rigid tire carrying rim and for disconnection and disassemblage to break the rim for convenient application or removal of the tire.

The object of the present invention is to provide a sectional demountahle rim the sections of which are adapted to be readily and convenientl v disconnected and disasseruhled and as readily assembled and interlocked, the interloclnng means being of a type to hold said sections securely against casual disconncction.

The invention consists of the features of construction. combination and arrangement of parts, hercinafter fully described and claimed. reference being had to the accompanying drawing, in which:

Figure 1 isa side elevation of a Wheel rim embodying my invention. showing the sections thereof assen1bled and a, tire applied thereto.

Fip:. 2 is a view on an enlarged scale looking toward the inner side of the lever locked ends of the rim.

Fig. :3 is a side eleration of the split portion of the rim shown in Fig. 2.

Fig. 4 is a longitudinal section through the same.

Fig. 5 is an outer face view of the lockjointed ends of the rim sections.

Fig. 6 is a detail longitudinal section through the same.

eferring g to the drawing, 1 desigates a demountahle rim of the split sectional ring type, said rim being severed transversely at the points 2 and 3 to divide the rim into two sections 4 and 5, which, for convenience of description. may be termed the body section and the detachable or temovable section, respectively. The rim 1 is provided with t e l1sual opening 6 to receive the Specfication of Letters Patent. Application filed August 3, 1917.

Patented Feb. 11:1919. Serial No. 184,314.

valved inflating stem 7 of the pneumetic tire 8, and it will he observed that the rim is divided by two uncqual sections, the section 5 being relatively smaller than the section 4. .This division of the rim into a relatively larger body section and smaller detachable or removahle section is preferred, in order to facilit ate the handling of the section 5 in assemblin and disassembling said rim sections, alt ough such dimensioning of the rim sections is not absolutely essential.

The split 2 is radial to the to provide straight ahutmnt surfaces 9 and 10 at the adjacent ends of the rim, while the split 3 extends tangentially or at an oblique angle across the rim so as to p'rovide beveled abutment surfaces 11 and straight transversc ahutment surfaces 12 at the adjacent ends of the rim. The abutment surfaces 9 and 10 are designed to provide, in conjunetion with other features, a rigid lock joint at the point 2, Which will normall v prevent their lateral or longitudinal (circumferential) movement of either rim section, and will permit of the rim secbeing applied and removed by slidtion o ing and pivotal motion at a presclibed ang 1e, while the abutme nt surfaces 11 are designed to provide slopmg surfaces Which will ride easily upon each other to facli tato the connection and disconneetion of the rim section 5, and the ahutment surfaces 12 form square shoulders to hold the rim ends from aceidentally slipping when expanded and locked together.

The lock joint at the point 2 is formed by providing the end 9 of the section 4 with a central integral projecting tongue 13 which is adapted to fit Within a correspondingly formed recess 14 in the end 10 of the rim section 5, Whercby said rim sections are adapted to be guided at the aforesaid point into and out of engagement and to be held firmly against relative sidewise or lateral mo vements. Riveted or otherwise secured to the inner face of the end 9 of thesection 4 is an abutment plate 15 which projects beyond the edge of the said rim section, and riveted or otherwise Secu'red to the inner face of the end abutment plate Y. edge terminates short or lies inwardly of the end edge 10 of said section 5, to ari xtent corresponding to the exten t of pr0jecti0n of the axxs of the rim outeredge of the plate 15 beyond the end at the point 2 the ton 9 of the rim section 4. Thus When the two rim sections 4 and 5 are ooupled together e 13 Will project into the recess 14, while t e projectin edge of the abutment plate or piece 15 wii lap over the joint and upon the inner surface of the body of the-rim section 5 and will engage the adjaoent ed of the abutment plate or piece 16. The a utment platos or p1eccs 15 and 16 will thus coperate to hold the joined ends of the rim sections at the point 2 against relative longitudinal or circumferen of the rim section 5 at the end 12 is cut away away to looking pin or.stud 26 on t to provide a projecting tongue 19 Which IS adapted to extend in said recess 17, said tongue having lateral shoulders 20 to bear a.mst the inner facesof the tongue 18, w i1e the heads of the section 5 are cut form reeessee 21 receiving the tongues 18, whcreby the two ends of the rim sections at the point 3 will be locked against lateral and longitudinal (circumferential) movements, but are adapted to slide into and out of engagement on the beveled surfaces 11 When not fastened or held against such movements. As shown, the heveled surfaces 11 are formed on the tongues 18, while the square abutment surfaces 12 are formed upon the adjacent end edges of the rim body. For the purpose of connecting and holding the rim ends at the point 3 normally against movement in any direction, an eccentric fastening lever 22 is provided, which lever is pivotally mounted at one end, as indicated at 23, upon the end of the section4 and has its opposite end arrimgcd to form a handle 24 which is adapted, when the lever is in fastening position, to extend longitudinally of the rim and overlap the end of the rim section 5, thus holding the two sections at the point 3 against sliding movements. The lover is provided in one of its edges with an inciined or cam slot 25 adapted to engage a e end of the rim section 5, whereby the lever will be frictionally held in fastening osition, the cam form or inclihation of the s ot also serving in the looking movement of the lever to draw the abutment surfaces 11 and 12 of the rim sections together to make the joint 3 absolutely rigid and seem Assuming the rim sections to be connected and removed as described, and supporting a tire 8, when it is desired to break the rim or dis :onnect the sections thercof for removal of the tire the lever 22 is first unfastened by swinging it out of engagemerrt With the stud 26 and backWardly over upon the rim section 4 as i'ndicated in dotted lines in Fig;2, such action freeing therim ends at the'point 3 for sliding movements. By then disposing the rim as shown in Fi y 1, with the rim section 5 facing downwar the joint may be broken at the point 3 by simply raising the rim and allowing it to drop orcibly against a floofor other surface, the force of the blow causing the rim end 12 of the section 5 to ride inwardly on the surface 11 of the section 4, thereby moving the rim section 5, as shown in dotted lines in Fig. 1, inwardly to a position eccentric to'the axis of the rim section 4 or to the axis of the rim andtire. so that by grasping the free end of the section 4 and swinging it to a further extent inwardly the end 10 of said section Will be pivotally and slidably withdrawn from engagemeht With the tongue 13 and abutment plate 15, as will be readily understood. The same result may be secured by disposing the rim so that the end 11 of the ortion 4 faces down wardly, and depressm such end, by pressure of the foot, out o alinement with the end 12 of the section 4, which action will be permitted by the resiliency of the adjacent portion of the pneumatic tire, the joint 3 thus being broken and the rim ends separated in a quick and convenient manner, after which the rim section 5 may be removed by releasing it at the point 2 in the manner previously described. The rim section 5 havin been removed in either of the ways herein efore set forth, it is evident that the rim section 4 may be drawn easily out of engagement with th tire 8 or the tire released therefrom in a ready and con venient manner.

In applying a tire to the rim, the rim sections are disconnccted,if not already dis connected, and the tire is then first fitted upon the rim section 4, after which the end 10 of the rim section 5 is interlocked with the end 9 of the rim section 4. and the end 12 of the rim section 5 then forced outwardly by pressure of the foot or otherwise, such action causing the beveled surfaces 11 and 12 of the two sections to slide freely upon one another until they are in alinement and interlocked together. after which the lover 22 is moved to the fastening position shown in full lines in Fig. 2 and engaged with the stud 26 by means of which the ioint 3will be reinforced by the lapping arrangement of the lover and the ends 11 and 12 firmly and securcly drawn and fastened together. ,In eeoting the conneclll tion of the end 10 of the section 5 withthe end 9 of the section 4, the section 5 is disposed in the eccentric position shown in dotted lines in Fig. 1 and then adustedso as to bring the tongue 13 into engagement with the reeess 15, after tion 5 is moved outwardly to a position a proachin a true concentric relation to ti i e axis of tie rim, in which operation the interlocking elements upon the ends 9 and 10 are brought into engagement by a combined pivotal and sliding motion, after which the rim ends 11 and 12 are brought together and fastened as pr viously described. By reason of the fact thai, n.efi'ecting the engagement and disengagement of the rim ends 9 andl0, it is necessary to dispose the rim section'5 in an eccentric posti rim ends by a combined swinging or pivotal and sliding m'otion, it is evident that when the rim end 5 is in normal position and fastened by the lever 22 it will beabsolutely rigid with the rim section 4, so that said rim sections can not become casually separated or disassembled. are placed in position upon the wheel, the lever 22 will be housed and protected and will be held from all liability of a casual releasing action.

It will thus be seen that my invention provides a sectional demountable rim in which the sections are so combined as to permit of their assemblage and disassemblage without the use of either applied tools, forming part of the rim, or separate and independent tools, and that while the rim sections may be easily and conveniently connected and disconnected they will be normally held rigid against disconnection or displacement of the tire. Also it will be seen that the end 10 of the section 5 muy be coupled with the end 9 of the section 4 without the necessity of disposing the section 5 in an awkward or incon venient position, and also without the neres sty of making the coupling means between said rim ends of such a character as to render it diflicult to bring the same into and out of coacting engagement.

Having thus fully described my invention, I claim:

1. A rim including a removable section having at one end a detachable slidable and pivotal connection at one end With one end of the rim body, section is adapted to -be pivotally swung within the circumference of the rim in an are between positions eceentric to and concentric with the rim aXis for respectively disposing Said detachable section in position for disconnection and to complete the rim formation, and means for coupling said removable section at its opposite end to the opposite end of the rim body, said detachable and pivotal connections comprising interfitting and abutting elements, sa1d elewhich the said sec-" on and connect said- \Vhen the rinrand tire whereby said removable menta being operative to hold the first named ends of the rim members against lateral displacement and said rim members against relative radial swinging movement beyond the circumference of the rim, and also to hold the first named ends of the rim members rigidly against inward movement when the letter named ends bers are coupled.

2. A demountable rim including a body section having a slot at one end thereot, a removable section having at oneend a 10ngitudinally extending tongue to slidably and pvotally engage said slot, an abutment member upon the inner face of the body section projecting beyond the end thereof to a less extent than said tongue, an abutment plateupon the inner face of the removable section partially closing the inner side of the slot and terminating inwardly of the end of said section, and means for coupling the sectiens at their opposite ends.

3. A demountable rim comprising a body section, a detachable section, said sections having straight transverse abutment surfaces at one end and beveled sliding abutment surfaces at the opposite end, said sections being also provided at the first named end with longitudinally extending interfitting tongued and recessed portions, one of said sections beingprovided with an abutmentplate ly.-

ing inwardly of the end thereof and the other section being provided with an abutment plate projecting beyond its end for lapping enga'gement with the first named section and abutting engagement with the first named abutment plate, said abutment plates being arranged and operating to permit relative sliding movements of the sections and relative radial pivotal movemonts of said sections within the line ot the circumference of the rim, while preventing relative radial pivotal movements of the sectiens outwardly beyond the line of the circumference of the rim, the opposite ends of said sections being adapted for sliding engagement, and means connecting the latter named ends of the sections together, said tongue and abutment plates further serving to lock the first named rim ends rigidly against inward movement when the rim sectlons are united for use.

4. A split demountable rim comprising a body section and a rcmovable section, said; sections having adjacent end portions adapted for interlocking engagcment, the end portion of the body section being provided with a projectingtongue and an abutment piece extending theret'rom a distance less than the length of the tongue, and the end portion of the removable section being provided with a slot to receive said tongue, and an abutment piece extending across the inner portion of the slot, said abutment pieces being disposed upon the inner faces of said sections of the run memund arranged to respectively overlap the end of the removable section and the tongue when the sections are conpled, whereby said sections are held. from lateral and outwm*d 5 radial movement and the removable secti0n is adapted to be disposed eccentrically to the axis of the rim and the parts mentioned brought into engngcment hy sliding and piv otal movements in the adjustmcnt of the Icmovable section from sm eoccntric to u con centric position, the opposite ends of the sections being armnged for coupling engagc- V ment when the removahle section is disposcd in concentric position, and means for couling the letter named ends of the sections.

5. A split demountable rim comprising a body section end u removable section, said sections having adj acent end portions adapted for intcrlocking engagement, the end por 20 tion of the'body section being provided with a projectine tongue und en a butnient piece extending therefron1 a distance less than the length of the tongue, end the end poxtion of the removahle section being provided with aslot to receive said tongue, und en abutment piece extending across the inner portion of radial movement and the removable section is adapted to be disposed eccentrically to the m(is of the nm und the parts mentioned brought into engag;ement by sliding and piv- 0tal movements in the adjnstment of the removable section from en eccentric to a condentrie position, the opposite ends of the sections; being provided with beveled surfaoes for sliding engagement with each other in the movement of the removeble section from eccentric to concentrio position, and means for coupling the sliding ends of the sections together.

In testimony whereof I hereunto aiix my signature in the presence of two witnesses.

ELMER OLIVER.

Witnesses R. H. SIATON, K. M. SWEEGAR. 

